4539918 has 32 divisors (see below), whose sum is σ = 9828864. Its totient is φ = 1392512.

The previous prime is 4539911. The next prime is 4539923. The reversal of 4539918 is 8199354.

It is a super-2 number, since 2×4539918² = 41221710893448, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4539911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4321 + ... + 5267.

It is an arithmetic number, because the mean of its divisors is an integer number (307152).

Almost surely, 2^4539918 is an apocalyptic number.

4539918 is an abundant number, since it is smaller than the sum of its proper divisors (5288946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4539918 is a wasteful number, since it uses less digits than its factorization.

4539918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016.

The product of its digits is 38880, while the sum is 39.

The square root of 4539918 is about 2130.7083329259. The cubic root of 4539918 is about 165.5830976471.

The spelling of 4539918 in words is "four million, five hundred thirty-nine thousand, nine hundred eighteen".